Add leveldb makefile
Add leveldb makefile

spreadcoin-project/spreadcoin,spreadcoin-project/spreadcoin,spreadcoin-project/spreadcoin,spreadcoin/spreadcoin,spreadcoin-project/spreadcoin,spreadcoin/spreadcoin,spreadcoin/spreadcoin,spreadcoin/mrspread,spreadcoin/mrspread,spreadcoin/spreadcoin,spreadcoin/mrspread,spreadcoin/spreadcoin,spreadcoin/mrspread,spreadcoin/mrspread